A system including a pointing rod 4 positioned on a measurement point X, a prism 3 fixed at a position deviated by a first fixed length L1 from the measurement point X in an axial direction PP of the pointing rod 4, an inclination casing 5 for fixing an analysis pattern 41 located at a position deviated by a second fixed length L2 from the prism 3 in an axial direction of the pointing rod 4 and is perpendicular to a surface with respect to the axial direction of the pointing rod 4, and a survey machine 2 having an image-taking section 22, a section of measuring a distance to the prism, and a section of measuring an angle 11,12. The position of the measurement point is measured from a position of the prism 3, an inclination direction A of the pointing rod 4, and the first fixed length L1.
Legal claims defining the scope of protection. Each claim is shown in both the original legal language and a plain English translation.
1. A system of measuring a three-dimensional position of a measurement point, the system comprising: a pointing rod positioned on the measurement point; a prism fixed at a position deviated by a known first fixed length from the measurement point in an axial direction of the pointing rod; an inclination casing for fixing an analysis pattern which is located at a position deviated by a known second fixed length from the prism in the axial direction of the pointing rod and is located on a plane perpendicular to the axial direction of the pointing rod; and a survey machine including a section of measuring a distance to the prism, a section of measuring an angle, and an image-taking section, the three-dimensional position of the measurement point being measured from a three-dimensional position of the prism obtained in the sections of measuring the distance and the angle, an inclination direction of the pointing rod obtained from an image obtained by imaging the inclination casing by means of the image-taking section, and the first fixed length.
A 3D position measurement system uses a pointing rod placed at the point to be measured. A prism is fixed to the rod, offset by a known distance L1 along the rod's axis. An inclination casing, holding an analysis pattern, is also fixed to the rod, offset from the prism by a known distance L2 along the rod's axis and positioned on a plane perpendicular to the rod's axis. A survey machine measures the distance and angle to the prism, and includes a camera. The 3D position of the measurement point is calculated from the prism's 3D position, the rod's inclination (determined from the camera's image of the analysis pattern), and the known distance L1.
2. The system of measuring the three-dimensional position of the measurement point as claimed in claim 1 , wherein the system includes: obtaining a three-dimensional position of a prism center of the prism in the sections of measuring the distance and the angle, calculating a pattern center of the analysis pattern by analyzing the image obtained by means of imaging the inclination casing; calculating a positional direction of the inclination casing from the pattern center and the prism center on the image; calculating the three-dimensional position of the pattern center to which a distance from the three-dimensional position of the prism center on the positional direction of the inclination casing is the second fixed length; and measuring the three-dimensional position of the measurement point by moving positional information from the three-dimensional position of the prism center in a direction along a line between three-dimensional position of the pattern center and the three-dimensional position of the prism center by the first fixed length.
The 3D position measurement system, as described in Claim 1, calculates the 3D position of a prism's center using distance and angle measurements. It analyzes a camera image of an inclination casing to find the analysis pattern's center. The system then calculates the direction to the inclination casing from the prism's center and the pattern's center in the image. The 3D position of the pattern's center is calculated by offsetting from the prism's 3D position along the direction to the inclination casing by distance L2. Finally, the system calculates the 3D position of the measurement point by offsetting from the prism's 3D position by distance L1 along the line connecting the prism's 3D position and the pattern's 3D position.
3. The pointing rod used in the system of measuring the three-dimensional position of the measurement point as claimed in claim 1 , wherein the prism is fixed to the position deviated by the known first fixed length from the measurement point in the axial direction of the pointing rod, and the inclination casing fixes the analysis pattern which is located at the position deviated by the known second fixed length from the prism in the axial direction of the pointing rod and is located on the plane perpendicular to the axial direction of the pointing rod.
The pointing rod, for use in the 3D position measurement system described in Claim 1, has a prism fixed to it, offset by a known distance L1 along the rod's axis from the measurement point. An inclination casing secures an analysis pattern, which is offset from the prism by a known distance L2 along the rod's axis. This analysis pattern is on a plane perpendicular to the rod's axis. This specialized pointing rod assembly enables the system's 3D position determination.
4. A system of measuring a three-dimensional position of a measurement point, the system comprising: a pointing rod positioned on the measurement point; a prism fixed at a position deviated by a known first fixed length from the measurement point in an axial direction of the pointing rod; an inclination casing for fixing an analysis pattern which is located at a position deviated by a known second fixed length from the prism in the axial direction of the pointing rod and is located on a plane perpendicular to the axial direction of the pointing rod; and a survey machine including a section of measuring a distance to the prism, a section of measuring an angle, an image-taking section of shooting a surrounding scene, and a prism image-taking section of shooting the prism, the three-dimensional position of the measurement point being measured from a three-dimensional position of the prism obtained in the sections of measuring the distance and the angle after imaging the prism with the prism image-taking section for collimating the prism, an inclination direction of the pointing rod obtained by an image obtained from imaging the inclination casing by means of the image-taking section, and the first fixed length.
A 3D position measurement system uses a pointing rod placed at the point to be measured. A prism is fixed to the rod, offset by a known distance L1 along the rod's axis. An inclination casing, holding an analysis pattern, is also fixed to the rod, offset from the prism by a known distance L2 along the rod's axis and positioned on a plane perpendicular to the rod's axis. A survey machine measures the distance and angle to the prism, using a dedicated prism camera for precise aiming. It also has a camera for imaging the surrounding scene and the analysis pattern. The 3D position of the measurement point is calculated from the prism's 3D position (after prism collimation), the rod's inclination (determined from the camera's image of the analysis pattern), and the known distance L1.
5. A method of measuring a three-dimensional position of a measurement point, the method comprising the steps of, by using a pointing rod positioned on the measurement point, a prism fixed at a position deviated by a known first fixed length from the measurement point in an axial direction of the pointing rod, an inclination casing for fixing an analysis pattern which is located at a position deviated by a known second fixed length from the prism in the axial direction of the pointing rod and is located on a plane perpendicular to the axial direction of the pointing rod, and a survey machine including a section of measuring a distance to the prism, a section of measuring an angle, and an image-taking section: obtaining a three-dimensional position of a prism center of the prism in the sections of measuring the distance and the angle; calculating a pattern center of the analysis pattern by analyzing an image obtained by imaging the inclination casing; calculating a positional direction of the inclination casing from the pattern center and the prism center on the image; calculating a three-dimensional position of the pattern center which is deviated from the three-dimensional position of the prism center by the second fixed length on the positional direction of the inclination casing; and measuring the three-dimensional position of the measurement point by moving positional information from the three-dimensional position of the prism center in a direction along a line between the three-dimensional position of the pattern center and the three-dimensional position of the prism center by the first fixed length.
A method for measuring a 3D position uses a pointing rod at the measurement point, a prism fixed to the rod (offset by L1), and an inclination casing with an analysis pattern (offset from the prism by L2). The survey machine measures distance and angles to the prism and captures images. The method involves these steps: 1) Obtain the prism center's 3D position; 2) Calculate the analysis pattern's center by analyzing a camera image of the inclination casing; 3) Calculate the inclination casing's direction using the pattern and prism centers in the image; 4) Calculate the 3D position of the pattern center by offsetting from the prism's 3D position by distance L2 along the inclination casing's direction; and 5) Determine the measurement point's 3D position by offsetting from the prism's 3D position by distance L1 along the line connecting the prism's 3D position and the pattern's 3D position.
6. A system of measuring a three-dimensional position of a measurement point, the system comprising: a pointing rod positioned on the measurement point; a target fixed at a position deviated by a known first fixed length from the measurement point in an axial direction of the pointing rod; an inclination casing for fixing an analysis pattern which is located at a position deviated by a known second fixed length from the target in the axial direction of the pointing rod and is located on a plane perpendicular to the axial direction of the pointing rod; and a survey machine including a section of measuring a distance to the target, a section of measuring an angle, and an image-taking section, wherein an inclination casing for fixing an analysis pattern which is located at a position deviated by a known second fixed length from the target in the axial direction of the pointing rod and is located on a plane perpendicular to the axial direction of the pointing rod, a three-dimensional position of the target center is obtained in the sections of measuring the distance and the angle; a positional direction of the inclination casing is calculated from the pattern center and the target center on the image, a three-dimensional position of the pattern center is calculated which is deviated from the three-dimensional position of the target center by the second fixed length in the positional direction of the inclination casing, and the three-dimensional position of the measurement point is measured by moving positional information from the three-dimensional position of the target center in a direction along a line between the three-dimensional position of the pattern center and the three-dimensional position of the target center by the first fixed length.
A 3D position measurement system includes a pointing rod, a target (instead of a prism) fixed at a known distance L1 from the measurement point along the rod's axis, and an inclination casing with an analysis pattern, located L2 from the target along the rod's axis and on a plane perpendicular to the rod's axis. A survey machine measures distance and angles to the target, and includes a camera. The system calculates the target's 3D position and the direction of the inclination casing. Then, it calculates the 3D position of the pattern center by offsetting from the target's 3D position by L2 along the inclination casing's direction. Finally, the system calculates the measurement point's 3D position by offsetting from the target's 3D position by distance L1 along the line connecting the target's 3D position and the pattern's 3D position.
7. A system of measuring a three-dimensional position of a measurement point, the system comprising: a prism fixed at a position deviated by a known first fixed length from the measurement point; an inclination casing for fixing an analysis pattern which is located at a position deviated by a known second fixed length from the prism in a same direction of the first fixed length and is located on a plane perpendicular to a line between the measurement point and a prism center of the prism; and a survey machine including a section of measuring a distance to the prism, a section of measuring an angle, and an image-taking section, wherein a three-dimensional position of the prism center is obtained in the distance measuring section and the angle measuring section, a pattern center of the analysis pattern is calculated by analyzing an image obtained by imaging the inclination casing, a positional direction of the inclination casing is calculated from the pattern center and the prism center on the image, a three-dimensional position of the pattern center is calculated which is deviated from the three-dimensional position of the prism center by the second fixed length in the positional direction of the inclination casing, and the three-dimensional position of the measurement point is measured by moving positional information from the three-dimensional position of the prism center in a direction along a line between the three-dimensional position of the pattern center and the three-dimensional position of the prism center by the first fixed length.
A system measures 3D positions using a prism offset by a known distance L1 from the measurement point. An inclination casing, holding an analysis pattern, is positioned L2 from the prism in the same direction as L1 and lies on a plane perpendicular to the line between the measurement point and the prism's center. A survey machine measures the distance and angle to the prism and captures images. The system calculates the prism's 3D position, finds the analysis pattern's center in the camera image, and determines the inclination casing's direction from the pattern and prism centers. It then calculates the pattern center's 3D position by offsetting from the prism's 3D position by L2 along the inclination casing's direction. The measurement point's 3D position is then calculated by offsetting from the prism's 3D position by distance L1 along the line connecting the prism and pattern 3D positions.
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January 20, 2016
August 22, 2017
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